Binder attachment for sewing-machines.



No. 665,445. Patented Ian. 8, I90l. J. B. KNICKEBBOCKER, Decd.

B. K| |IBKERBOOKER, kdminlatratrix. BINDER ATTKOHMENIFOR SEWING MACHINES.

(Application filed Aug. 7,1899.) (I0 Iodal.)

Witness NITED STATES PATENT Fries.

RUAMY KNICKERBOCKER, OF MEOl-IANIOSVILLE, NEW YORK, ADMINIS- TRATRIX OF JAMES B. KNICKERBOKER, DECEASED.

BINDER ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent N 0. 665,445, dated January 8, 1901.

Application filed August '7, 1899. Serial No. 726,493. (No model.)

To all whom, it may concern.-

Be itknown that JAMES B.KNICKERBOCKER, deceased, formerly a citizen of the United States, and a resident of Mechanicsville, in the county of Saratoga and State of New York, did invent a new and useful Binder Attachment for Sewing-Machines, of which the following is a specification.

This invention relates to attachments for sewing-machines, and more particularly to attachments whereby binding is formed and sewed upon the material at the necks and bottoms of knit underwear and to an improved form of presser-foot especially intended for use with such attachments.

The object of the invention is to generally improve the construction and increase the eiiiciency of such attachments.

With this object in view the invention consists in the improved construction, arrangement, and combination of parts hereinafter fully described and afterward specifically pointed out in the appended claim.

In order to enable others skilled in the art to which this invention most nearly appertains to make and use the same, its construction and operation will now be described, reference being bad to the accompanying drawings, forming part hereof, in which Figure l is a perspective view illustrating the practical operation of this invention. .Fig. 2 is a top plan View of the attachment removed from the machine. Fig. 3 is a transverse vertical section on the plane indicated by the dotted line 3 3 of Fig. 2 on an enlarged scale. Fig. 4 is a similar view on the plane indicated by the dotted line 4 4 of Fig. 2. Fig. 5 is a similar view on a plane cutting through the extremity of the attachment and the presser-foot at the needle-hole.

Like letters of reference indicate the same parts wherever they appear in the several figures of the drawings.

Referring to the drawings by letters, A indicates the table of a sewing-machine, B the arm thereof, and O the presser-foot. The presser-foot differs from those of ordinary construction in that it is provided with a longitudinal downwardlyprojecting flange 0' along its outer edge outside of the needlehole 0, the material of the edge of the garment, as at D, occupying the space between the flange and the needle-plate of the machine and the same material and the two thicknesses of binding E occupying the increased space under the presser-foot inside of the flange, the edge of the binding abutting against. the flange, all as best shown in Fig. 5.

The binder attachment proper comprises a strip of metal F, bent or curved at about its center, forming a part F to extend along the front edge of the table and a part F extending across the table, the whole being adjustably secured to the table by means of a handscrew G, passing through a slot H in a bracket H, secured to part F of the strip F, the strip F sitting edgewise on the table.

I indicates a loop on the outside of part F of strip F, J a similar loop at the beginning of its curve, and K a similar loop at the end of its curve.

L indicates the tension-frame secured on part F between loops I and J. Within the frame is a pair of vertical tension-rollers M M, journaled in slots N N in the top and bottom of the frame. A bearing-plate Ois also fitted slidably in said slots, its ends in contact with the journals of roller M. A spring P, coiled upon a guide-rod Q, has its forward bearing against the plate 0 and its rear bearing against a hand-nut R, threaded on the guide-rod, by means of which the pressure of the spring against the bearing-plate, and consequently of the roller M against M, is regulated.

S indicates a curved loop with inturned ends S, secured to a stem T, which passes through a slot in part F of strip F and threaded to receive a clam p-nut U, by means of which the curved loop is adjustably secured to the strip F.

In the operation of the attachment the bind- .ing Vfrom a spool or other receptacle is passed in an erect position through loop I, then between the tension-rollers M and M, then through loops J and K, and finally through the curved loop S, by means of which it is formed or curved over the edge of the material W being bound. The end of part F is thickened on the needle side, as at Y,by brazing a piece of metal on its face, the presserfoot working against said brazed piece, which will preferably be of some metal which does not require lubrication.

By means of this attachment the necks and bottoms of knit garments may be bound expeditiously and neatly. When the operation of the binder is facilitated by this improved resser-foot, still very good results may be obtained with the attachment in conjunction with an ordinary presser-foot which may be used for other purposes.

\Vhile the best means now known for carrying out the invention have been illustrated and described, it is to be understood as not restricted to the exact forms of constructions shown, as many slight changes therein or variations therefrom might suggest themselves to the ordinary mechanic, all of which would be clearly included within the limit and scope of this invention.

Having thus fully described thisinvention,

RUAMY KNICKERBOCKER, Achninistratrioc 0f the estate of J. B. 16111070- erboclizer, deceased.

\Vitnesses:

E. B. HUNTER, GEO. B. LAWRENCE. 

